Pin game lift



Patented Aug. 29, 1944 UNITED STATES PATENT OFFICE 1 Claim.

This invention relates to new and useful improvements in pin game lifts.

The primary object of my invention is to provide a pin game lift adaptedto pick up practically any size pin game and hold same securely andsafely in position while moving the pin game to the desired location.

A further object of my invention is to provide a pin game lift whichenables one man to do the work formerly required by two men, and whicheliminates the necessity of dismantling pin games preparatory to movingand installation.

A still further object of my invention is to provide a pin game liftwith an improved hydraulic check, through the use of which the machineis set down silently and quietly at the desired 1ocation.

Still another object of my invention is to provide a pin game lift ofthe character specified that is simple and economical in constructionand highly efficient and durable in use.

In the accompanying drawing, which is for illustrative purpose only andis therefore not drawn to scale:

Figure 1 is a perspective view of a pin game lift, embodying myimprovements, and Figure 2 is an enlarged detail sectional View of thespring controlled cat-ch and `co-acting pin, and associated parts, forholding the upper platform in raised position.

Referring to the drawing for a more particular p description of myinvention, and in which drawing like parts are designated by likereference characters throughout the several views, A designates a pingame of any ordinary or approved make now on the market and B my pingame lift, as a whole.

Specifically, my pin game lift comprises the rectangular oblong lowerframe I, mounted on the casters 2 and consisting of side and verticalbars 3 'and 4, respectively, suitably joined together at the corners ofthe frame.

An upper platform 5 is mounted for vertical movement on the lower frameI and provides a support or rest for the bottom of the pin game. Thefront edge of the platform 5 is provided with the safety flanges 6 toprevent the pin game from slipping off while loading or unloading on anincline. The upper platform 5 is raised to lift the pin game off theoor, by means of the bell cranks 1, hinged to the cross rod 8 andconnected to said platform by the links 9. T'he upper platform is heldin elevated or raised position by the spring controlled catch IU andco-acting pin II, situated at the adjacent corner of the lower frame I.The catch I0 is pivoted at its upper end, as at I2, to the outer end ofthe corresponding bell crank 1, and is formed in its lower end with arecess I3 adapted to receive said pin. The catch I0 is provided with afoot release I4.

A hydraulic check I5 is arranged at a suitable incline between the rearend of the lower frame I and the upper platform 5, the purpose of whichwill presently appear.

In practice, the lift is rolled under the pin game about to be moved,when the operator simply presses down on the cross bar I6 with one foot.This elevates the pin game above the floor and locks it securely in thisposition while moving the pin game to the desired location. After themachine has been rolled into the desired position for installation, theupper platform 5 is released by pressing on the fooil release I4 bymeans of the foot, when the hydraulic check I5 allows the upper platform5 to slowly descend and set the pin game gently and silently on thefloor.

Having described my invention, what I claim as new and desired to secureby Letters Patent, is:

A pin game lift, comprising a portable rectangular lower frame,comprising vertical corner members and horizontal connecting members, anupper platform, means connecting said platform and said lower frame forrelative movement, a bell crank pivoted on each side of the lower frame,a Icross'bar connecting the outer ends of the bell cranks, linksconnecting the inner ends of the bell cranks with the upper platform anda spring controlled catch and co-acting pin cooperating with said bellcranks and frame to hold the platform in raised position.

LOUIS BERMAN.

